22638932 has 12 divisors (see below), whose sum is σ = 39734100. Its totient is φ = 11286336.

The previous prime is 22638919. The next prime is 22638947. The reversal of 22638932 is 23983622.

It can be written as a sum of positive squares in 2 ways, for example, as 17422276 + 5216656 = 4174^2 + 2284^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22638892 and 22638901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6713 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (3311175).

Almost surely, 2^22638932 is an apocalyptic number.

It is an amenable number.

22638932 is a deficient number, since it is larger than the sum of its proper divisors (17095168).

22638932 is a wasteful number, since it uses less digits than its factorization.

22638932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16570 (or 16568 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 22638932 is about 4758.0386715536. The cubic root of 22638932 is about 282.8906835132.

The spelling of 22638932 in words is "twenty-two million, six hundred thirty-eight thousand, nine hundred thirty-two".